Transom Tools‘ audio-tech wiz, Jeff Towne, has writ a clear, comprehensive guide to Pro Tools Shortcuts. All kindsa tips and tools to select, navigate, group, fade and bounce sound in PT. All these shortcuts are good to know, some will change your working life.
I haven’t tried this, but if you have frequent ProTools probs, you might give this shareware a go: ProTools Prefs & Database Helper (Mac 10.4.x). It finds-&-deletes Digidesign databases (.ddb) and preference files (.plist) to help debug Pro Tools perturbations.
Oakbog studios has posted ProTools Troubleshooting Techniques, w/ reference topics: Know the Major Components of your System, Isolate the Problem: Questions to Ask, Common Problems and Solutions, and When All Else Fails.
And do check their mashup medley mp3 Tokens (Tokens, Ladysmith Black Mambazo, Miriam Makeba, Manu Dibango) of Wimoweh– The Lion Sleeps Tonight: